Calculating-machine.



PATENTED JAN. 8, 1905.

' J. P. HARRISON, JR. CALCULATING MACHINE.

APPLICATION FILED SEPT. 23 1904.

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PATENTED JAN. 3, 1905.

J. P. HARRISON, JR- CALCULATING MACHINE.

APPLICATION FILED SEPT. 23,1904.

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No. 778,966. 7 PATENTED JAN. 3, 1905.

' J. P. HARRISON, JR-

GALGULATING MACHINE.

APPLICATION FILED SEPT. 23.1904.

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PATENT OEEIcE.

JOHN P. HARRISON, JR, OF LUDLOl/V, KENTUCKY.

CALCULATING-MACHINE.

SPECIFICATION forming part of Letters Patent No. 778,965, dated January 3, 1905.

Applicatio fi September 23, 1904. Serial No. 225,561.

To all whom it may concern.-

Be it known that 1, JOHN P. I'IARRISON, Jr. a citizen of the United States of America, and a resident of Ludlow, county ofKenton, State of Kentucky, have invented certain new and useful Improvements in Calculating-Machines, of which the following is a specification.

The object of my invention is a calculatingmachine which is capable of forming two columns of figures on a page and of putting down the total at the bottom of each column at one passage of the sheet upon which the columns are written through the machine. This object is attained by the means described in the specification, particularly pointed out in the claims, and illustrated in the accompanying drawings, in which Figure 1 is a longitudinal sectional view of a calculating-machine, only so much of the parts of the machine being shown as is necessary to illustrate my invention. Fig. 2 is a detail sectional view of the roller and the means for reciprocating the same to change from one column of figures to the other upon line 00 w of Fig. 1. Fig. 8 is a sectional view of the arms for the pinions which regulate the position of the levers carrying the type and the means for reciprocating the shaft which bears the same. Fig. A is a detail front elevation of the pinions, the arms which carry them, and the shafts upon which the arms are located. Fig. 5 is a detail side elevation of one of the pinions, showing the pawl which regulates the total and the arm for engaging the pawl. Fig. 6 is a view similar to Fig. 5, but taken from the opposite side. Fig. 7 is a detail perspective view of the mechanism for locking the shafts which carry the pinions in position. Fig. 8 is a front elevation of the shafts for moving the pinion-bearing shaft.

Referring to the parts, the type a, bearing numerals, are carried at the end of levers A, which are mounted upon a shaft (0, which is secured between the sides of the casing B, the forward end of the lever consisting of a rack (0 having teeth upon its forward end to engage pinions C, which are mounted upon a shaft 0, which is borne by the arms 0, themselves mounted upon a shaft 0 Mounted a to engage the hook (4 upon the upper end of rack a. \Vhen the shaft D is rotated to carry the arm (Z underneath the lever A, the turning of the shaft D rotates the arm 0 .about shaft 0 and carries the pinion C out of engagement with the rack (0 so that the downward movement of the rack a does not change the position of the pinion C, the hook a catching wire a corresponding to the key which has been struck to bring the type opposite the roller E, over which the paper and the ribbon is being fed. The type are actuated in any suitable manner as, for instance, like the type in United States Letters Patent No. 505,078 to WV. S. Burroughs-to print the numeral upon the paper. Upon the return rotation of the shaft D the pinion C is brought into contact with the rack (6 which thereupon turns the pinion C in a left-hand direction, the number of notches corresponding to the numeral upon the key just struck. In its normal position the pawl c of the pinion C rests upon the bent end of the arm 0', which is beveled upon its under side to allow the pawl to pass it from the under side, but to catch and hold the pawl when approaching it from its upper side, as will be seen from Figs. 5 and 6. When it is desired to get a total, the total-key corresponding to the total-key shown in Fig. 50f United States Letters Patent No. 388,119 to WV. S. Burroughs is struck,

Shaft 0 is mounted in casing B, so as to be capable of areciprocation therein. Thenumber of the arms 0 and the number of the pin ions C is twice as many as the numbers of the levers A, there being, therefore, two pinions C and C for each lever A, the pinions being similar in construction, one set, C, of pinions coming in contact with the levers A when the other set, C, are carried out of said contact, one set, C, of said pinions being used to add the total of one of the columns of figures, the other set, C, of pinions being used to add the total of the second column of fig ures.

I will now describe the means I have used for shifting the shaft 0 and the pinions C C, as well as the roller E, for changing from one column of figures to the other.

Journaled near the bottom of easing B in bearings b L are two oscillatory shafts F F, which hear at their forward ends arms ff to engage lugs 0 0 upon shaft 0 so that the rotation of the shaft F in one direction causes arm f to carry the shaft 0 to the right to bring one of the sets of pinions O or G to register with the racks a Shaft F carries an arm f whose upper end is engaged by an arm f which is pivoted upon a standard f secured to the bottom of the casing B. Shaft F has similarly an upwardly-projecting arm f whose upper end is to be engaged by an arm f, which is pivoted upon the upperend of a standard f likewise secured to the bottom of easing B. Arms f f are connected by a spring In the normal position of the arms f f they are both engaged by the arms f and f. Mounted adjacent to arm f is a rod 9, which is pivoted at g to the casing and is coupled at g to a rod the upper end of which carries a key G. Rod g carries a stud g", which contacts the end of arm f Mounted adjacent to arm f is a rod which is pivoted to the casing in the same manner that arm 9 is pivoted at g, has a rod corresponding to rod and a key to correspond to key Gr. Rod has a stud to engage the end of arm f Supposing arms f f to stand in their normal vertical position, should it be desired to shift the shaft 0 to the right key G would be struck, lowering arm 9 and carrying arm f out of contact with arm f when the spring f would rotate the shaft F and cause the arm f to reciprocate the shaft 0 The arms f f' are carried to their normal position by the following means: Shafts F F have inwardlyprojecting arms ff which are adapted to be engaged by arms it, secured upon the shaft H, which is rotated every time the shaft D is rotated by mechanism such as is shown in the Patent No. 50%,963 to IV. S. Burroughs, the shaft H in the present application corresponding to the shaft 100 in said patent and the shaft D in this application corresponding to the shaft 600 in the patent, so that after each movement of the shaft D arms f f are carried to their vertical position to be engaged by arms f f. Then should it be desired to move the pinions C O back to the left again in order to write in the first column arm 7 is lowered by striking its key, and the stud a then releases arm 7' from f, and the spring f rotates the shaft F, causing its arm 7" to engage the lug 0" and carry shaft o back to the left. It is necessary to carry the pinions C C out of contact with the rack (1? during their reciprocation and likewise necessary to lock the shaft from movement after each reciprocation. To accomplish this, I use the following means: Journaled in brackets m m is an oscillatory shaft M, which has lugs m m", one of which comes beneath the lower end of rod 7 and the other one of which comes beneath the lower end of rod so that the shaft M is oscillatedwhen either red y or is lowered. Rod M has a lug m", in which is journaled a yoke 'mi", consisting of a rectangular wire which passes underneath shaft c" and around a stud '0 which projects downward from a collar 0, secured upon the rod 0 so that every time shaft M is oscillated it raises stud c and rotates the shaft 0 to carry the pinions C or C out of contact with rack (f. This stud 0 also acts as a means for locking the shaft from reciprocation in the following manner.

Secured to a block 1 upon the bottom of the casing B is a metal strip m, passing beneath the shaft 0 adjacent to the position of the stud 0 Strip m passes beneath the bracket m secured to the bottom of the casing B, and is upturned at its end m. Stud m" has an arm on", passing beneath the bracket m and having a curved portion m to engage the end 111*. When the shaft M is oscillated, it draws the arm m over the end of the metal strip m and lowers the same at the same time that the stud c is raised, and the shaft o is reciprocated, thereby allowing the stud c to pass over the strip and to be engaged by it to hold the stud from allowing the shaft 0 to reciprocate until one of the keys (3i is again struck to change the position of the pinions.

Roller E is mounted reciprocally upon the shaft 0, adjacent to which is a shaft 0', mounted in the frame, upon which are located two sliding arms c whose ends contact the roller E. Arms 0 0 have outwardly-projecting arms 0" e which are contacted by arms f f secured upon the ends of the shafts FF, so that when said shafts are vibrated to move pinions U C the arms f f move the roller E in a corresponding manner, so that paper carried. by the roller is moved beneath the type, so that the numerals are written in one or the other column.

IV hat I claim isv 1. In an adding-machine, the combination with printing-segments, gear-segments controlling them, duplicate totalizers mounted for alternate engagement With the gear-segments, a longitudinally movable shaft on which the totalizers are mounted, and means for moving the shaft longitudinallyto engage one totalizer or the other with the gear-segments.

2. In a calculating-machine the combination of a set of keys representing a system of numerals arranged in columns representing digits, tens, hundreds, &c., a system of levers carrying at one of their ends types with numerals corresponding to those of the keys and at the second of their ends being adapted to engage a series of pinions, a reciprocating roller mounted adjacent to the types. means for coupling the keys and the levers to cause the type corresponding to the key struck to be presented to the roller, a reciprocating shaft mounted adjacent to the second end of the levers, two sets of said pinions upon the reciprocating shaft, one set being adapted to engage the second ends of the levers when the other set is disengaged therefrom, and means for reciprocating the shaft and the roller.

3. In a calculating-machine the combination of a set of keys representing a system of numerals arranged in columns representing digits, tens, hundreds, &c., a system of levers carrying at one of their ends types with numerals corresponding to those of the keys and at the second of their ends being adapted to engage a series of pinions, a reciprocating roller mounted adjacent to the types, means for coupling the keys and the levers to cause the type corresponding to the key struck to be presented to the roller, a reciprocating shaft mounted adjacent to the second end of the levers, two sets of said pinions upon the reciprocating shaft, one set being adapted to engage the second ends of the levers when the other set is disengaged therefrom, a vibratory shaft mounted adjacent to the reciprocating shaft and the roller, a key-rod for vibrating the shaft and arms coupling the vibratory shaft with the reciprocating shaft and with the roller.

L. In a calculating-machine the combination of aset of keys arranged in columns representing digits, tens, hundreds, &c., a system of levers carrying at one of their ends types with numerals corresponding to those upon the keys, and at the second end having racks, a reciprocating roller mounted adjacent to the types, means for reciprocating the keys and the levers to cause the type corresponding to the key struck to be presented to the roller, a reciprocating shaft mounted adjacent to the racks, two sets of pinions upon the reciproeating shaft, one set adapted to engage the racks when the other set is disengaged therefrom, means for reciprocating the shaft and the roller and means for disengaging the pinions from the racks during the reciprocation of the pinions.

5. In a calculating-machine the combination of a series of keys arranged in columns to represent digits, tens, hundreds, &c., a lever mounted upon a shaft for each column, each lever carrying at one end a series of type corresponding to the type in its column and having at its second end a rack, a reciprocating roller adjacent to the type, means for coupling the keys and the lovers to bring the type corresponding to the key struck opposite to the roller, a reciprocating shaft mounted adjacent to the racks, vibratory arms mounted upon the reciprocating shaft, pinions carried by the vibratory arms, there being twice as many pinions as racks, one set of pinions being in engagement with the racks when the other set is disengaged therefrom, a vibratory shaft mounted adjacent to the reciprocating shaft and the roller, arms coupling the vibra tory shaft to the reciprocating shaft and to the roller, a key-rod for reciprocating the vibratory shaft and the vibratory arms to carry the pinions out of engagement with the racks during said reciprocation.

6. In a calculating-machine the combination of a set of keys arranged in rows one row representing digits, the next tens, &c., a series of levers corresponding to the rows of keys carrying at one end type similar to the keys and adapted at their second end to engage pinions, a reciprocating roller mounted adjacent to the type, a reciprocating shaft mounted adjacent to the second end of the levers, two sets of pinions mounted in the reciprocating shaft, one set to be engaged by the levers when the other is disengaged, two vibratory shafts mounted adjacent to the roller and the reciprocating shaft, arms coupling the vibratory shafts with the reciprocating shaft and with the roller, an arm carried by each vibratory shaft, a spring connecting the last named arms, a pawl for each of the vibratory arms to hold them in a normal position, a key-rod for each vibratory arm to disengage it from the pawl and put it under domination of the spring and an automatically-operated means for resetting the vibratory arms in their normal position.

JQHN P. HARRISON, JR. Witnesses:

WV. F. MURRAY, A. MoCoRMAo 

